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iOS Build a Simple iPhone App with Swift Views and View Controllers View Controllers and IBAction

Kenton Raiford
Kenton Raiford
5,101 Points

All I can see is the title screen "Fun Facts." How do I get to the next page where my information is?

All I can see is the title screen "Fun Facts." How do I get to the next page where my information is?

For whatever reason I can't get to the second screen where my button is in the iOS simulator.

8 Answers

Omar Nunez
Omar Nunez
4,101 Points

That is a run time code error, You should try a new file, because is a short APP, if you can't find where the error is.

Omar Nunez
Omar Nunez
4,101 Points

Review your IBAction config. Or put it here to see more.

Pasan Premaratne
STAFF
Pasan Premaratne
Treehouse Teacher

Kenton Raiford,

Sounds like the simulator is crashing on the launch screen. Reset the simulator (Simulator menu > Reset Content and Settings) and try again?

Kenton Raiford
Kenton Raiford
5,101 Points

Hi guys,

Thanks for your help. I reset the simulator but It still doesn't seem to work. When I create a new xcode file and do the exact same steps it works but on my original project it doesn't. I could just continue with the new one, but I want to know what to do in case this happens to me again.

Here is the code for my project that is not working:

import UIKit

class ViewController: UIViewController {

@IBOutlet weak var funFactLabel: UILabel!

override func viewDidLoad() {
    super.viewDidLoad()
    // Do any additional setup after loading the view, typically from a nib.
}

override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()
    // Dispose of any resources that can be recreated.
}

@IBAction func showFunFact() {
    funFactLabel.text = "Another interesting fact"
}

}

Kenton Raiford
Kenton Raiford
5,101 Points

I should also mention every time I build it pops up the debug screen and has a yellow triangle next to the Thread 1 queue

Mahesh Babu
Mahesh Babu
3,402 Points

After researching a lot and fixing lot of these issues, I know exactly what the issue is you might have had an old outlet property still hanging on with that view controller which ever you are working with.

Step - 1 Open the Document Outline, Step - 2 , Check all the outlets for the View Controller. Let me know if you can fix this issue by now.

Anirudh Rao
Anirudh Rao
1,704 Points

I am having the same issue, any progress?

Kenton Raiford
Kenton Raiford
5,101 Points

I have tried everything but it still isn't working. For now I have just made a new file and the new file is working.